Answer the question in maximum 50 words/5 to 6 lines. This question carries 05 marks. [MPPSC 2022] “Municipal solid waste can help to reduce energy purchase” is the subject of a brief notice.
Eutrophication is a process where excess nutrients primarily nitrogen and phosphorus stimulate excessive plant growth in aquatic ecosystems leading to decreased water quality and harmful impacts on aquatic life. Types of Eutrophication - Cultural eutrophication- It is the pollution of water bodies cRead more
Eutrophication is a process where excess nutrients primarily nitrogen and phosphorus stimulate excessive plant growth in aquatic ecosystems leading to decreased water quality and harmful impacts on aquatic life.
Types of Eutrophication –
- Cultural eutrophication- It is the pollution of water bodies caused by human activities leading to an overgrowth of algae and harm to aquatic life.
- Natural eutrophication- It is the gradual enrichment of water bodies with nutrients, occurring naturally over time without human interferences.
Impacts of Eutrophication –
- Contribution to climate change through methane production.
- Irreversible damage to aquatic life leads to collapse of ecosystems.
- Increased risk of waterborne diseases.example-Cholera, Typhoid etc.
- Excessive algae growth leading to decreased water clarity affecting the fishing, tourism industries and drinking water supply .
Solution to Eutrophication –
- Reducing the amount of nutrients entering into a water body from various sources particularly nitrogen and phosphorus.
- Adoption of Methods and techniques to prevent, mitigate, or eliminate excessive algae growth in water bodies.
- Educational efforts and awareness campaigns about the causes, consequences, and solutions to eutrophication.
- Making of laws, guidelines, and standards to ensure sustainable water management and protection of aquatic ecosystems.
Eutrophication, a pervasive environmental issue that threatens aquatic ecosystems globally. Effective solutions require collaborative efforts, policy changes, and sustainable practices to mitigate eutrophication’s devastating consequences and protect precious water resources for future generations.
See less
*Municipal Solid Waste: A Renewable Energy Source* Municipal solid waste (MSW) can be harnessed to reduce energy purchases and mitigate environmental concerns. *Benefits:* 1. Renewable Energy Generation: MSW can be converted into energy through waste-to-energy (WtE) technologies, such as incineratioRead more
*Municipal Solid Waste: A Renewable Energy Source*
Municipal solid waste (MSW) can be harnessed to reduce energy purchases and mitigate environmental concerns.
*Benefits:*
1. Renewable Energy Generation: MSW can be converted into energy through waste-to-energy (WtE) technologies, such as incineration, gasification, and anaerobic digestion.
2. Reduced Greenhouse Gas Emissions: WtE reduces methane production in landfills and decreases reliance on fossil fuels.
3. Energy Self-Sufficiency: MSW-based energy generation reduces dependence on external energy sources.
4. Waste Management: WtE encourages efficient waste collection and segregation.
*Waste-to-Energy (WtE) Technologies:*
1. Incineration: Burning waste to produce electricity/heat.
2. Gasification: Converting waste into synthesis gas (syngas) for energy production.
3. Anaerobic Digestion: Microbial breakdown of organic waste to produce biogas.
*Examples:*
1. Sweden’s waste-to-energy program: 52% of waste is converted into energy.
2. India’s Waste-to-Energy Policy (2016): Encourages WtE projects.
*Challenges:*
1. High upfront costs
2. Public acceptance
3. Technical limitations
*Opportunities:*
1. Energy generation
2. Job creation
3. Reduced landfilling
4. Carbon credits
By leveraging MSW as a renewable energy source, cities can reduce energy purchases, minimize waste disposal issues, and contribute to a sustainable future.
See less